diff --git a/Assets/ModuleSpawner.cs b/Assets/ModuleSpawner.cs
index c0aa3d9..9f24df4 100644
--- a/Assets/ModuleSpawner.cs
+++ b/Assets/ModuleSpawner.cs
@@ -28,7 +28,7 @@ public class ModuleSpawner : MonoBehaviour
             case ModuleType.SPLITTER:
                 return hubModulePrefab;
             case ModuleType.DC_MOTOR:
-                return dcMotorModulePrefab;
+                return null; // DC module deactivated
             case ModuleType.SERVO_1:
                 return servoBendModulePrefab;
             case ModuleType.SERVO_2: